Stop using strace and call your doctor at once if you have:

problems with your vision or hearing;
hallucinations, (see or hearing things that are not real), thoughts about suicide or hurting yourself;
depressed mood, crying spells, changes in behavior, feeling angry or irritable;
loss of interest in things you enjoyed before, feeling hopeless or guilty;
sleep problems, extreme tiredness, trouble concentrating;
changes in weight or appetite;
a seizure (convulsions), sudden numbness or weakness;
muscle weakness, pain in your bones or joints or in your back;
severe diarrhea, rectal bleeding, bloody or tarry stools;
pale skin, feeling light-headed or short of breath;
severe stomach or chest pain, pain when swallowing; or
dark urine, or jaundice (yellowing of your skin or eyes).